Mounting for bobbins



- May a, 1923. w 4 1,454,660

' W. I. TUTTLE I MOUNTING FOR BOBBINS Filed Feb. 5', 1921 with thatthrough the which is provided Patented May 8, 1923.

WALTER I. TUTTLE, OF PROVIDENCE, RHODE ISLAND, ASSIGNOIt TO MOSSBERGCOMPANY, OF ATTLEBORO, MASSACHUSETTS, A

CORPORATION OF RHODE ISLAND.

MOUNTING FOR BOBBINS.

Application filed February 5, 1921. Serial No. 442,649.

To all whom it may concern:

Be it known that I, WALTER I. TUTTLE, a citizen of the United States,and a resident of Providence, county of Providence, and State of RhodeIsland, have invented an Imrovement in Mountings for Bobbins, of whichthe following is a specification.

I This invention relates to bobbin supporting mechanism and is moreparticularly adapted for use in textile machinery One of the objects isto provide mechanism of the above type of, simple and practicalconstruction and efiicient action. Another object is to provide amechanism of the above type in which the parts are securely mounted andyet accurately positloned. Other objects will be in part obvious and inpart pointed out hereinafter. I

The invention accordingly consists in the features of construction,combinations of elements and arrangement of parts which will be'exemplified in the structure hereinafter described and the scope of theapplication of which will be indicated in the following claims.

In the accompanying drawing in which is shown one of various possibleembodiments of this invention,

Figure 1 is a longitudinal section thereof; Figure 2 is an end view ofthe same; and Figure 3 is a cross-section taken on the line 33 ofFigure 1. Similar reference characters refer to Slmllar parts throughoutthe several views of the drawings.

Referring now to Figure 1 of the drawings, there is shown at 10 atubular support comprising an inner tubular member 11 formed of wood orthe like surrounded by an outer metal sleeve or-sheath 12.

At-one end of thissupport is provided a ring 13, the bore through whichregisters with three or more outwardly projecting lugs 14, theoutersurfaces of each ofwhich are flush with the outer wrface of thesheath 12. These lugs fit in suitable slots at the end of the tube 12 asshown in Figure 2 of the drawings, and between the lugs the edge of thepart 12 is flan ed or headed over as shown at 15 to 71101 the partssecurely in assembled relation.

At the opposite end of the support there is inner tube 11 andof thesprings provided a crown ratchet 16 flanged at 17 to fit over and besecured to the sleeve'12.

The above tubular support 10 is adapted to fit removably within abobbin, diagrammatically indicated at 18 which rests thereon and againstthe ratchet 16 There is a likelihood however of substantial variation inthe bore of bobbins and yet'it has been found to be desirable that theybe securely held in place and yet readily removable whatever theirdeparture from uniformity. Also it is highly desirablethat they becentered with substantial accuracy with respect to the axis of thesupporting member. I

Turning now to the features of this invention which bear directly on thefacts immediately above recited, there are provided a plurality ofspring members 19 here shown as two in number, symmetrically disposedabout the axis of the bobbin support. These springs. which are ofsubstantially identical construction, may be formed of heavy spring wirebowed throughout their central portion and having their end parts 20resting within slots in the member 11 to permit of slight longitudinalmovement at one or both ends as the spring is flattened out. The bowedportion of these springs passes through suitable slots in the outersheath'12, which slots register with a recess or groove 21 in the,

member 11 into which the springs may be compressed as they are.flattened out and, if

necessary, rest substantially flush with the outer surface of the tube.

Considering the action of one of these springs, it engages the bore ofthe bobbin with a yieldin pressure, and even though the diameter 0 thelatter vary, it will, while readily removable, be held in place with asubstantially uniform friction. With a plurality of springssymmetrically disposed they tend to hold the bobbin in co axial positionwith respect to the tubular support. Even with the two springsshown,-the bobbin is centered as regards the plane of the springs bytheir substantially equal and opposite resilient pressure and iscentered as to a plane transverse thereto by the tendency to find andretain the plane of maximum diameter of the bore of the bobbin. I

It will thus be. seen that there is provided apparatus in which theseveral objects of this invention are vachieved and that the be nouschanges might be made in the act efi'ectively to support a bobbinaccurately in position and yet permit its ready removal.

s various possible embodiments might made of-the above invention and asvaembodiment above set forth, it is to be understood that all matterherein setforth or shown in the accompanying drawings is to be inter-*preted as sense.

I claim as my invention v Y 1. In mechanism of the class described, incombination with a bobbin or .the like, a member adapted to enter thebore'of the bobbin to support the same comprising an inner hollow woodenmember and an outer metal sheath substantially enc'asing and permanentlysecured to said wooden mem-. ber, said sheath having a longitudinal slottherein and saidwooden longitudinal groove registering with said slotand extending beyond each end of said slot whereby a recess is formedbetween said sheath and said inner member at each end of said slot, andan elongated spring member having its end slidably resting in saidrecesses ahd having its central portion tending to spring outwardlythrough said slot to vpress against the inner surface of the bobbin toprevent relative rotation between said :bobbin and said supportingmember.

2.. In mechanism of the class described, in combination with a bobbin orthe like, an

illustrative and not in a limiting rality of longitudinal member having3.

inner hollow supportin member having a plurality oflongitudina groovesformed in metal sleeve member substansupporting memflanged over 'an itssurface, a tially encasing said inner berand having a portion endthereof to secure said gether, said sleeve 'member having apluslot-sregistering with said longitudinal grooves, a spring memberseated in each of said grooves and tending at its central portion tospring outwardly through said slot against the inner surface of thebobbinto relation to said support and to prevent relative rotationbetween said bobbin and said support.

3. In mechanism of the class described, in combination with a bobbin orthe like, a rotatable supporting member} adapted to enter the bore ofthe bobbin andsupport the same to rotate therewith, said supportingmember comprising an inner member-having a pluralityof grooves formedin-its surface and an outer metallic sleeve substantially encasing saidinner member and two' members tohold said bobbin in co-axial having aplurality of slots registering with 7 January, 1921.

' WALTER I. TUTTLE.

said slots against the

